Closet ventilation.



PATBNTBD MAY19, 1908. J; J. DONOVAN. QLOSETVENTILATION. APPLICATION FILED JUNE 5, 1902.

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UNITED STATES PATENT Patented May 19, 1903.

O FICE.

CLOSET VENTILATION.

SPECIFICATION forming part of Letters Patent No. 728,448, dated May 19 1903.

Application filed June 5, 1902. Serial No. 110,263. (No modeh) To all whom, it may concern.-

Be it known that 1, JAMES J. DONOVAN, a citizen of the United States, and a resident of Peekskill, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Closet Ventilation, of which the following is a specification. 1

This invention relates to the ventilation of water-closets, and has for its objects the sim pliflcation and convenience of attaching the ventilating-pipe with the closet-bowl connections. The objects are attained by the means set forth in the specification and the accompanying drawings.

An explanation will first be made of the drawings, in which like numerals and letters refer to similar parts throughout the several views. V,

Figure 1 is a front elevation of a tank and ventilating features partly in cross-section;

Fig. 2 is a like elevation, partly in cross-section, showing additional tank attachments. Fig. 3 is an end elevation of thetank through lines a of Figs. 1 and 2. Fig. 4 is a plan of the tank and ventilating attachments. Fig. 5 is a detail showing a ventilating-pipe'connection with the tank overflow-pipe. Fig. 6

shows another means of making the ventilating and overflow-pipe connections.

To effect the best ventilation of a room containing a water-closet, the ventilating-pipe should be connected with the closet-bowl. To make this connection, recourse is had either to a separate ventilating pipe to the bowl or a union of the ventilating-pipe difan 8 and motor 11 are shown to be combined. The motor discharges its water into the tank by way of the pipe 13, Figs 2 and 3, and'is supplied with water through the pipe 15 from with the areas of the pipes.

A the valve 12. The float'la regulates the supply of water. The pipe 4 from the bottom of the tank is the flushing-pipe. As this invention does not appertain directly to the bowl and the flushing devices, illustration of some of those features is omitted. A flushingvalve 2 3 is connected with the pipe 4. The valve-base 2 has two outlets, one that is closed by the float 3, which has a facing of leather b. This is the flushing valve. From the valve-base is a conduit '5, terminating in a stand-pipe 6, which serves as an overflow to the tank. There is a clear passage through the stand-pipe, the conduit, and valve-base to the flushing-pipe 4. This form of valve and connected overflow is one quite commonly used; but any form of valve and overflow that afiords freedom of access to the overflowpipe will be equally suitable for the purposes of this invention.

: The preferable means of connecting the draft-pipe and the overflow-pipe is shown in Figs. 1 and 3. The draft-pipe 7 is shown to be larger in diameter than the overflow-pipe 6, the difference in diameters being such as not to obstruct a free overflow of water from the tank. The'draft-pipe should preferably extend below. the low-water line in the tank,

so that the space between the pipes would al-' ways be sealed by water, the water preventing a suction of air between the two pipes.

No particular object-ion, however, exists to the water seal being temporarily broken, as it may be in emptying the tank, as the airspace betweenpthe pipes is small compared Itmay even be desirable in some cases to take out some of the upper stratas of air in the room. A permanent water seal mayalso be obtained in the manner shown in Fig. 6. A section of pipe or cup 17, having a reduced portion 19 to fit close upon the stand-pipe, will aflord a space 18, that will always remain full of water, and with the pipe7 reaching into it, as shown, the water seal would never be broken.

Fig. 2 -shows the draft-pipe 7 to be directly connected with or a continuation of the overflow-pipe 6, the overflow being secured, by means of perforations 9 in the pipe, at the high-waterline 10. These holes would always remain open except when water was overloo flowing through them. A like result may be obtained by projecting the draft-tube Within the overflow-pipe, as shown in Fig. 5. These means may be employed when it is desired to take air from the upper part of the room as Well as to ventilate through the closet-bowl.

Having described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-- 1. In acloset-ventilating system the combination with the overflow-pipe in the flushingtank, of the draft-pipe from the ventilating means extended over the said overflow-pipe with a Water-space between the two pipes, the

draft-pipe extending below the normal waterline in the tank.

2. In a closet-ventilating system the combination of a ventilating-fan, the overflow-pipe 0f the flushing-tank, and the draft-pipe from the fan, said draft-pipe having a larger diameter than the said overflow-pipe and extending over said overflow-pipe, and a water seal between the two pipes.

JAMES J. DONOVAN.

lVitnesses:

EUGENE M. CHAPMAN, ELIAS S. CHAPMAN. 

